Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of dismay when you notice something isn’t quite right with your furnace. You’re sitting at home and you realize your furnace is endlessly kicking in and shutting off. However, before you panic, there are a few things you can check when you feel like your furnace seems to be shutting off a lot more than it should be.

  1. Check the air filter in your furnace—You may think that air filters are only used to help keep the indoor air cleaner, but the filters also work to keep your system clean. Your first step when you realize there is a concern with your system should be examining your air filter to see if it needs replacement. If it’s clogged or dirty, it can make it tough for air to flow over the heat exchanger.
  2. Look at your thermostat—For several of us, we may have set our thermostats months ago and forgot about it, particularly when using a smart or programmable thermostat. Examine your thermostat to see if anything unfamiliar is occurring or if it may need new batteries. The site of your thermostat could make a difference, as well. If it’s located in a place that’s typically hotter than the rest of your home, such as in direct sunlight or by another heat source, it could be falsely assuming your home is already up to the desired temperature.
  3. Check out your windows for proper insulation—If your home doesn’t have proper insulation, your furnace is likely to shut off more often. Walk around your home and check the windows to make sure they are all closed and take a look at the seals around your windows for any drafts or cold air entering the home.

While you can review these issues on your own, if issues still occur after these checks, it might be time to call in the pros. When your furnace is consistently turning off, it can end up forcing unnecessary work and stress on your system that could lead to more pricey repairs or even a replacement.

Our experts are willing to help you examine the situation and find the root of the cause, so you can enjoy the rest of the season with the optimum indoor comfort. If you have questions, you can call our experts at or check out our online scheduler to conveniently request an appointment.

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